Calculate Your Recommended SPF

SPF, or Sun Protection Factor, increases the length of time you can stay outside in the sun without incurring sunburn or irritation from UV-B rays. At present there is no standard to measure protection from UV-A rays.

Look at the SPF on your sunscreenNote which SPF is stated on the product labeling, eg. SPF 20

Calculate your protection time, the amount of time you can stay outside before burning:Multiply the sun safety time for your skin type with the SPF listed on your sunscreen.eg. 15 minutes (for olive skin) x SPF 20 = 300 minutes (5 hours) of sun protectionResult: Olive skin using a sunscreen with SPF 20 can under ideal conditions stay in the sun for up to 5 hours.